Facebook/Instagram need help please?

[Nancy]

What you did was a form of cyber-bullying. At least you were smart enough to realize that it was a stupid thing to do and deleted the account.

Now, unless you delete your cookies and change your IP address, anyone with any amount of computer knowledge can find the IP addresses of both Instagram accounts and see that they are the same as your Facebook IP address.

It's also possible that whoever told you that they know that the hate account was yours didn't really know, but knew that you hated this person and when the hate account showed up, figured it was you who did it. Don't you realize that word spreads rather quickly about things like this?

You're lucky that the person you made the account about doesn't press charges against you. Even with the account deleted, it can still be found if law enforcement was informed. Cyber-bullying/harassment is taken very seriously now. Grow up and don't do this again.